"Confirm and Cross Check" is what I hear on United before they open doors after landing.
And then the other way....
https://aviation-safety.net/database...?id=19990407-2
That made big news when it happened, but it was hard to find in The Google search.
ETA: Here is a better one.
https://theaviationgeekclub.com/time...pressure-test/
Bookmarks